Structural Elements - Building & Construction Authority

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AC’s CHECKLIST IN DESIGN EVALUATION REPORT
Project Title ________________________________________________________________
________________________________________________________________
Project Reference No: _________________________ ST _________________
Name of AC: _________________________
Name of PE assisting AC:
_________________________
Name of engineers assisting AC
Highest Qualification /
Name of University
Total years of
design experience
PART A:- OVERALL DESIGN REVIEW TASKS
For the design check on the building or structures in this submission, I confirm that I have
evaluated, analyzed and reviewed the foundation and structural design with a view to
determining their structural adequacy. Besides other tasks, I have specifically performed the
following tasks and have found that the building or structures designed are structurally
adequate and safe:(I)
Codes Of Practice
-used appropriate codes for the design check
(II)
Design Loadings
-checked that loadings used in design are appropriate and adequate
-used appropriate load combinations to check the design
(III)
Structural Analysis
-used appropriate engineering information and models in the analysis
-ascertained the design assumptions and limitations of the computer programs used
which preferably should be different from that used by the design QP
(IV)
Stability & Robustness
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-determined the stability and robustness of the structural system, including
considerations for lateral loads, lateral ties, bracings and lateral transfer of loads
(V)
All Key Structural Elements
-analysed and checked the design of all key structural elements and the foundation
system
(VI)
Structural Drawings
-checked that the detailings in drawings of all key structural elements are adequate
and consistent with the intentions in design calculations
(VII) Other Aspects in Design
-determined the adequacy of other aspects of design which are peculiar to the building
to be constructed or affected by the building works and which are essential to the
structural integrity of the building
Part B: - FOUNDATION & STRUCTURAL ELEMENTS
For the following foundation and structural elements or structures, besides other engineering
considerations made by me, I have specifically carried out all the tasks as described in the
table below and confirmed that their designs are structurally adequate and safe: -
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(I) Foundation
Please tick one:
Applicable
Foundation
Foundation
loads
Not Applicable
Specific Design Tasks Carried Out

Appropriate values of dead, live ,wind and notional loads
have been used

Column loads have been appropriately computed

Effects of wind and notional loads on the building or
structure have been checked

Comparison of the loading computation by the QP &
AC has been carried out

Piles have been designed for skin friction and end
bearing capacities

Piles have been designed for lateral loads and bending
moment

Pile joints have been designed for

Piles have been designed for uplift

Socketings have been designed for piles with short
penetration depths

Piles have been designed for negative skin friction

Appropriate allowable bearing capacity of soil has been
assumed in design

Appropriate modulus of sub-grade reaction of the soil
has been assumed in design

Appropriate model used for structural analysis of the raft

The raft has been designed to resist punching shear from
columns

The building or structure has been designed to cater for
probable differential and total settlement.
Applicable (√ ) /
Not Applicable (X)
Piles
Raft
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(II) Building / Structural Systems
(a)
Building of less than 30 Storeys
Please tick one:
Items
Applicable
Not Applicable
Specific Design Tasks Carried Out
(i)
Designed for wind loads
(ii)
Designed for notional loads
(iii)
Stability system has been identified and evaluated to be adequate
and robust
(iv)
Designed corewalls and columns to resist lateral loads due to wind
and notional loads in both directions
(v)
Provided adequate internal and peripheral ties at floor levels
(vi)
Designed for capacities to resist base overturning moment and
base shear
(vii)
Designed for building sway (p-delta effect)
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Applicable (√ ) /
Not Applicable (X)
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(b)
Building of 30 Storeys or higher
Please tick one:
Items
Applicable
Not Applicable
Specific Design Tasks Carried Out
(i)
Designed for wind loads
(ii)
Designed for notional loads
(iii)
Stability system has been identified and evaluated to be adequate
and robust
(iv)
Designed corewalls and columns to resist lateral loads due to wind
and notional loads in both directions
(v)
Provided adequate internal and peripheral ties at floor levels
(vi)
Designed for capacities to resist base overturning moment and
base shear
(vii)
Designed for building sway (p-delta effect)
(viii)
Designed to limit overall lateral deflection of building
(ix)
Designed to limit inter-storey drift of building
(x)
Columns and walls have been checked for resistance to dynamic
effects due to wind on the building
(xi)
Checked for Requirements for Wind Tunnel Tests
(xii)
Checked for long term lateral deflection of building under gravity
load
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Applicable (√ ) /
Not Applicable (X)
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(c)
Building with Structural Steel Elements
Please tick one:
Items
Applicable
Not Applicable
Specific Design Tasks Carried Out
(i)
Designed for bolted and welded connections of supports and
member and splice joints
(ii)
Checked for in-plane and out-of-plane stability of frames
(iii)
Designed for bracings and longitudinal ties for overall stability
(iv)
Designed for wind load on the building/structure
(v)
Designed for lateral stability and torsional rigidity of structural
elements and trusses
(vi)
Support conditions assumed in design have been checked against
details provided
(vii)
Type of joint connections provided between members are
consistent with joint rigidity adopted in the analysis and design
(d)
Applicable (√ ) /
Not Applicable (X)
Building with Precast Concrete Elements
Please tick one:
Applicable
Not Applicable
Items
Specific Design Tasks Carried Out
(i)
All joint connections between precast members and precast to insitu concrete members have been designed for
(ii)
Loading conditions on precast members during erection or
construction stage have been considered
(iii)
Sufficient rigidity in the structural frame has been provided for to
resist lateral loads
(iv)
Adequate internal & peripheral ties have been provided in floors
(v)
All interface shear stresses have been checked
(vi)
Detailing of precast elements and structural joints have been
checked
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Applicable (√ ) /
Not Applicable (X)
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(e)
Building with Prestressed Concrete Structures
Please tick one:
Items
Applicable
Not Applicable
Specific Design Tasks Carried Out
(i)
Maximum prestress force and prestress losses for prestressed
elements have been computed according to code requirements
(ii)
Stresses for elements have been checked at transfer and service
stages
(iii)
Shear capacity has been designed for in prestressed elements
(iv)
For transfer beams and long span beams, consideration of stage
stressing has been made in design
(v)
End block design has been checked
(vi)
Details of prestressed elements, tendon profile, etc. have been
checked
(f)
Applicable (√ ) /
Not Applicable (X)
Building with Complex Structural Systems
Please tick one:
Applicable
Not Applicable
Items
Structural Systems
(i)
Structural system with more than 2 transfer floor levels of which
each carrying at least 3 floors; or structural system with
cantilever transfer element carrying more than 5 floors
(ii)
Inclined or curved building (offset of floor plate more than 3m
from the edge of the floor above or below)
(iii)
Structures with unconventional geometry (e.g. dome or archshaped)
(iv)
Large span structures (with span more than 40m) or large
cantilever span structures (where cantilever span is more than
8m)
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consultation (√ ) /
Not Applicable (X)
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(III) Specific Structural Elements
Please tick one:
Applicable
Structural
Elements
Not Applicable
Specific Design tasks carried out

Effective height has been
computed according to code

Bending moment about minor
axis has been designed for

Additional bending moment due
to slenderness has been designed
for

Biaxial bending moment has
been designed for
Columns
supporting
transfer beams

Designed for bending moment
due to frame action
Columns
supporting long
span beams

Designed for bending moment
due to frame action
Columns
supporting
cantilever beams

Designed for bending moment
due to frame action

Designed for horizontal load and
moment acting on columns due
to arched or pitched roof

Designed for bending moment at
the column base

Designed for bending moment
due to frame action
Slender Columns
Columns in a two
column frame
system
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Applicable (√ ) /
Not Applicable (X)
Locations in
Building
(specify the
storey levels or
reference grids)
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Structural
Elements *
Cantilever beams
Long span beams
Specific Design tasks carried out

Cantilever support has been
designed to resist bending
moment and shear

Designed for lateral stability of
beam

Designed to meet allowable span
depth ratio

Torsional rigidity of beam has
been checked.

Designed for lateral restraint of
beams

Designed for support and
member connections

Designed to meet allowable span
depth ratio

Designed for torsional capacity

Designed for shear capacity

Designed for all relevant upper
floor loads on the beam

Designed for lateral restraint of
beam

Transfer Beam supporting
sloping members designed for
both in-plane and out-of-plane
forces

Comparison bending moments
and shear forces computation by
QP & AC carried out
Transfer beams
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Applicable (√ ) /
Not Applicable (X)
Locations in
Building
(specify the
storey levels or
reference grids)
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Structural
Elements *
Flat slabs/plates
Cantilevered
structures with
tie-backs
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Specific Design tasks carried out

Appropriate model used for
analysis

Span/depth ratio of slab has been
checked

Adequacy of top and bottom
reinforcement throughout slab
panel have been checked

Designed to resist punching
shear from columns and walls

Openings in slabs, especially
near columns, have been
designed for

Torsional rigidity at slab edges
has been checked

Effects of construction loads
have been checked

Designed tie-back anchorage to
resist pull-out

Designed for lateral stability of
the structure

Designed for the durability of the
tie-backs

Designed for redundancy to
resist total collapse
Applicable (√ ) /
Not Applicable (X)
Locations in
Building
(specify the
storey levels or
reference grids)
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(IV) Earth Retaining Structures
Please tick one:
Items
Applicable
Not Applicable
Specific Design tasks carried out
(i)
Geotechnical parameters adopted for design of ERSS are
consistent with site investigation report and published literature
(ii)
Structure has been designed to resist overturning , sliding and
bearing capacity failure
(iii)
Structure has been designed to resist slip circle failure
(iv)
Structure has been designed for onerous soil and water pressure
acting on it
(v)
Adequate surcharge load has been taken into account in design
(vi)
ERSS checked for global stability, wall embedment, toe-stability,
base heave and hydraulic uplift
(vii)
Opening (service openings in wall), discontinuity in temporary
retaining walls has been checked for stability.
(viii)
Comparison of member forces computation for walls, struts, waler
and kingposts by QP & AC has been carried out.
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Applicable (√ ) /
Not Applicable (X)
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Part C: - MAJOR SHORTCOMINGS DETECTED DURING CHECKING
Major Mistakes / Design
Shortcomings Detected During Checking
Changes made by QP Due to My
Checking
Part D: - OTHER COMMENTS BY AC
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
I hereby certified that I have specifically carried out all the tasks for the foundation and
structural design as described in the tables above and confirmed that their design are
structurally adequate and safe.
Signature & stamp of AC:
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_______________________
Date: ______________
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